推进技术 ›› 1998, Vol. 19 ›› Issue (3): 33-38.

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超声速进气道湍流流场的数值模拟

赵桂萍,周新海   

  1. 中国科学院力学所;西北工业大学航空动力与热力工程系
  • 发布日期:2021-08-15

NUMERICAL SIMULATION OF TURBULENT FLOW FIELD SUPERSONIC INLET

  1. Deptof Aeroengine Engineering,Northwestern Polytechnical Univ,Xi′an,710072;Deptof Aeroengine Engineering,Northwestern Polytechnical Univ,Xi′an,710072
  • Published:2021-08-15

摘要: 采用有限体积法数值模拟了超声速进气道的湍流流场,改进了离散纳维尔-斯托克斯方程中粘性项的方法,使之具有较好的守恒性,研究使用了变系数的隐式残差光顺等加速收敛技术,并讨论了超音来流、收敛型进气道复杂流场初场的给定方法,所得到的数值解正确地展示了流场的复杂激波结构。

关键词: 超声速进气道;有限体积法;纳维尔-斯托克斯方程;激波

Abstract: A numerical analysis method of three dimensional compressible viscous flow of rectangular supersonic inlet for Hypersonic Ramjet Engine (HRE) was studiedThe major characteristics of this kind of inlet are:ploy shock wave structure,boundary layer shock wave interaction,and second flow existing in the flow field at same timeThe method is based on Jameson’s finite volume schemeIn stead of difference method,an integral scheme is adapted to disperse the viscous terms of Navier Stokes equations ensure the conservation of the schemeVarying coefficient implicit residual smoothing technique was studied to accelerate convergence The specified initial flow field and boundary condition for the supersonic convergence path was discussed

Key words: Supersonic inlet;Finite volume method;Navier Stokes equation;Shock wave